Statjunk I can currently relate to you. I had a new vapor trail string put on my bow and changed release to a copperhead xt, and then proceeded to lighten/adjustthe trigger and the adustable strap and ended up with trouble. I had a few flyers, not even on target,very poor acuracy, began to get jumpy and rush to release, adjusted the trigger again, but went the wrong way and lightened it, and had a premature misfire. I started last night when adjusting my release much stiffer, lengthened that release strap back out to comparible to old release and began to more slowly shoot at 20 yards. I guess I am thinking like you and as other have suggested, go back to the basics that have worked and get back to being comfortable.
Good luck.